Developmental Dysplasia of the Hip (DDH). Developmental Dysplasia of the Hip (DDH), a condition encompassing various hip joint abnormalities in children. They discuss the epidemiology and risk factors such as female sex, breech presentation, and swaddling practices, alongside the etiology and pathophysiology of the disorder. The texts detail clinical presentation and diagnostic methods, including physical examinations like the Ortolani and Barlow maneuvers, and imaging techniques such as ultrasound and radiography, emphasizing the importance of early detection and intervention.